zfs: Sync pools on shutdown.

2022-04-24 14:49:45 -04:00 · 2022-04-24 14:49:45 -04:00 · 50925651bb
parent 69d8047516
commit 50925651bb
1 changed files with 5 additions and 0 deletions
--- a/nixos/modules/tasks/filesystems/zfs.nix
+++ b/nixos/modules/tasks/filesystems/zfs.nix
@ -466,6 +466,11 @@ in
        '') rootPools));
      };

+      systemd.shutdownRamfs.contents."/etc/systemd/system-shutdown/zpool".source = pkgs.writeShellScript "zpool-sync-shutdown" ''
+        exec ${cfgZfs.package}/bin/zpool sync
+      '';
+      systemd.shutdownRamfs.storePaths = ["${cfgZfs.package}/bin/zpool"];
+
      # TODO FIXME See https://github.com/NixOS/nixpkgs/pull/99386#issuecomment-798813567. To not break people's bootloader and as probably not everybody would read release notes that thoroughly add inSystem.
      boot.loader.grub = mkIf (inInitrd || inSystem) {
        zfsSupport = true;